Prognostic factors, outcomes, and complications for dental autotransplantation: an umbrella review.

Background: Dental autotransplantation (DAT) is a biological way of replacing missing or compromised teeth for patients. The techniques often necessitate a multi-disciplinary approach. The prognosis and success of the procedure may be impacted by variable factors in varying degrees.

Aligning orthodontic education: Investigating the use of a digital app to improve the performance in managing orthodontic problems.

Introduction: General dentists are qualified to manage orthodontic emergencies within their scope of practice. This may involve advice, hands-on intervention or referral to a specialist orthodontist. This study aimed to assess the effect of an orthodontic app on dental undergraduates' ability to manage common orthodontic issues.

Is there an association between 30-day mortality and adrenaline infusion rates in post-ROSC patients? A retrospective observational analysis.

Introduction: Revised guidelines for the management of cardiac arrest have placed greater emphasis on early defibrillation and closed chest compressions; subsequently there has been a significant rise in the number of patients gaining a return of spontaneous circulation (ROSC). As a consequence, emergency medical services have realised the importance of therapies delivered during this phase of care. In some Trusts this includes the use of inotropic agents to augment the cardiovascular system and maintain adequate cerebral and coronary perfusion pressures to mitigate the effects of post-cardiac arrest syndrome.

Positional factors affecting the surgical management of impacted permanent mandibular canines.

Objective: To assess which positional factors influence the decision to surgically remove or expose an impacted mandibular canine. Clinical and radiographic assessment are important considerations when treatment planning for the management of impacted mandibular canines.

Design: A cross-sectional study.

Factors affecting willingness to pay for NHS-based orthodontic treatment.

Objective To assess factors affecting willingness to pay for orthodontic treatment.Methods An online discrete choice experiment and willingness to pay study was conducted on a convenience sample of 250 participants aged 16 and above over a four-month period. Participants completed a series of stated-preference tasks, in which they viewed choice sets with two orthodontic treatment options involving different combinations of attributes: family income; cost to patient; cause of problem; prevention of future problems; age; severity of the problem; and self-esteem/confidence.

Prioritising NHS dental treatments: a mixed-methods study.

Objectives To determine the priorities of patients and dental professionals concerning NHS dental treatments, the factors influencing prioritisation and the willingness to contribute towards the cost of NHS dental treatments.Methods Focus groups and interviews involving patients and practitioners informed the development of a piloted questionnaire concerning the priorities for NHS dental treatments. Patients attending three purposively selected dental settings in London and Kent, as well as dental professionals working within a large London dental hospital were recruited to participate in this initial qualitative phase.

Microbial colonisation associated with conventional and self-ligating brackets: a systematic review.

Background: Decalcification and gingivitis caused by plaque accumulation around brackets are common iatrogenic effects of fixed appliances. The influence of conventional versus self-ligating bracket design on microbial colonisation is unknown.

Objective: To assess the levels of microbial colonisation associated with conventional and self-ligating brackets.

Changes in the Transverse Dimension of the Maxillary Arch of 5-Year-Olds Born With UCLP Since the Introduction of Nationwide Guidance.

Objective: To determine whether the transverse dimensions of the maxillary arch of 5-year-old children with unilateral cleft lip and palate (UCLP) have changed following centralization of cleft services in the United Kingdom.

Design: Retrospective cross-sectional study.

Setting: Digital analysis of UCLP maxillary dental casts.

Patient reported experiences and treatment outcomes of orthodontic patients treated within secondary care settings in the South West of England during the COVID-19 pandemic.

Objective: To assess the impact of the temporary cessation of orthodontic services on patients undergoing treatment during the COVID-19 pandemic.

Design: Two-phase multicentre service evaluation.

Setting: Secondary care orthodontic departments in the South West of England.

Quantitative and qualitative analysis of operator inhaled aerosols during routine motorised equine dental treatment.

Background: Routine equine odontoplasty is performed by both Veterinary Surgeons and Equine Dental Technicians. The production of aerosolised particulates from motorised equipment has been well documented in human orthodontics but has yet to be investigated in the veterinary industry.

Objectives: To assess the size, quantity and composition of particulates produced during routine motorised odontoplasty and to model their deposition in the human respiratory tree.

National British Orthodontic Society (BOS) Orthognathic Audit 2017-2018.

Objective: To carry out a UK national clinical audit of orthognathic acceptance criteria and information provided to orthognathic patients before treatment.

Design: National clinical audit.

Setting: Data collected using Bristol Online Surveys.

Particulate production during debonding of fixed appliances: Laboratory investigation and randomized clinical trial to assess the effect of using flash-free ceramic brackets.

Introduction: The aim of this laboratory and randomized clinical trial was to investigate particulate production at debonding and enamel clean-up following the use of flash-free ceramic brackets and to compare them with non-flash-free metal and ceramic brackets.

Methods: In the laboratory study, brackets were bonded to bovine teeth. After 24 hours of immersion in water, the brackets were debonded, the adhesive remnant scores noted, and the enamel cleaned with the use of rotary instruments.

Efficiency and effectiveness of orthodontic treatment within United Kingdom secondary care: a service evaluation.

Objectives: To evaluate the efficiency and effectiveness of Orthodontic treatment in the National Health Service (NHS) hospitals in England and to identify factors that may be predictive of the duration of Orthodontic treatment and number of patients' visits.

Design: Retrospective service evaluation.

Setting: The orthodontic departments of two NHS hospitals.

Color stability of nonpigmented and pigmented maxillofacial silicone elastomer exposed to 3 different environments.

Statement Of Problem: The color degradation of maxillofacial prostheses in clinical service requires their frequent renewal. How different materials compare is unclear.

Purpose: The purpose of this in vitro study was to investigate the color stability of a nonpigmented and pigmented maxillofacial silicone when stored in darkness and exposed to accelerated aging in a weathering chamber and natural outdoor weathering.

Alignment efficiency and esthetic performance of 4 coated nickel-titanium archwires in orthodontic patients over 8 weeks: A multicenter randomized clinical trial.

Introduction: The objective of this 4-arm parallel study was to evaluate the alignment efficiency and esthetic performance of 4 coated nickel-titanium archwires over an 8-week period.

Methods: Patients in the permanent dentition requiring maxillary and mandibular fixed orthodontic treatment with a preadjusted edgewise appliance were eligible for inclusion. Patients attending 4 hospital departments (United Kingdom and Italy) were randomly allocated to 1 of 4 treatment interventions: (1) BioCosmetic (Forestadent, Pforzheim, Germany), 0.

Association between severity of hypodontia and cephalometric skeletal patterns: a retrospective study.

Objective: To assess if severity of hypodontia is related to a specific skeletal pattern.

Study Design: Lateral cephalometric radiographs and dental panoramic tomographs of 182 hypodontia patients were analysed. The severity of hypodontia was recorded and the sample was divided into groups with mild (n = 71), moderate (n = 56) and severe (n = 55) hypodontia.

Development of a 3D printable maxillofacial silicone: Part II. Optimization of moderator and thixotropic agent.

Statement Of Problem: Conventionally, maxillofacial prostheses are fabricated by hand carving the missing anatomic defect in wax and creating a mold into which pigmented silicone elastomer is placed. Digital technologies such as computer numerical control milling and 3-dimensional (3D) printing have been used to prepare molds, directly or indirectly, into which a biocompatible pigmented silicone elastomer can be placed.

Purpose: The purpose of this in vitro study was to develop a silicone elastomer that could be 3D printed directly without a mold to create facial or body prostheses by varying its composition.

YouTube™ as an information resource for orthognathic surgery.

Objective: To investigate video content on YouTube™ related to orthognathic surgery.

Materials And Methods: YouTube™ was searched using the terms: orthognathic surgery; orthodontic surgery; jaw surgery; jaw corrective surgery. Inclusion criteria included English language; primary content orthognathic surgery and acceptable audio-visual quality.

Bond strength of stainless steel orthodontic brackets bonded to prefabricated acrylic teeth.

Objectives: The purpose of this in-vitro study was to evaluate the force to debond stainless steel orthodontic brackets bonded to acrylic teeth using different combinations of adhesive and surface treatments.

Materials And Methods: One hundred prefabricated upper lateral incisor acrylic teeth were divided into 4 equal groups: Transbond XT® adhesive only (Group 1, control), Transbond XT® adhesive with sandblasting (Group 2), Transbond XT® adhesive with abrasion / + methyl methacrylate (MMA) (Group 3) and Triad® Gel only (Group 4). The force in Newtons (N) to debond the brackets was measured.

Precision of Le Fort I osteotomy: planning versus outcome. A multi-centre retrospective study.

Introduction: The purpose of this study was to evaluate the accuracy of Le Fort I surgery by comparing planned surgical movements with actual outcomes.

Materials And Methods: A minimum number of seven consecutive cases that had undergone a Le Fort I osteotomy procedure alone or in combination with a mandibular osteotomy from six different hospital units in the East of England between 2009 and 2010 were identified. A total of 56 cases met the inclusion criteria where surgical splints were used and model surgery had been performed.

An in vitro investigation of pre-treatment effects before fissure sealing.

Background: Fissure sealants prevent occlusal caries in permanent molars. Enamel preparation methods are used before fissure sealing.

Aims: To investigate effects of bioglass air-abrasion pre-treatment with and without an adhesive, on fissure enamel of permanent teeth, with respect to etchability, microleakage and microtensile bond strength.

Comparison of validity, repeatability and reproducibility of the Peer Assessment Rating (PAR) between digital and conventional study models.

Introduction: The validity, reliability and inter-method agreement of Peer Assessment Scores (PAR) from acrylic models and their digital analogues were assessed.

Method: Ten models of different occlusions were digitised, using a 3 Shape R700 laser scanner (Copenhagen, Denmark). Each set of models was conventionally and digitally PAR-scored twice in random order by 10 examiners.

Outcome of combined orthodontic-surgical treatment in a United Kingdom university dental institute.

Introduction: This retrospective observational cohort study evaluated effectiveness of combined orthodontic-orthognathic surgical treatment in a UK University Dental Institute.

Methods: Patients were identified from a database maintained prospectively throughout a 5-year period of observation. Demographic and clinical data included age, malocclusion, Index of Treatment Need, Index of Orthognathic Functional Treatment Need, orthodontist, surgeon, surgical procedure and treatment-time.

Development of a 3D printable maxillofacial silicone: Part I. Optimization of polydimethylsiloxane chains and cross-linker concentration.

Statement Of Problem: Conventionally, maxillofacial prostheses are fabricated by hand carving the missing anatomic defect in wax and creating a mold into which pigmented silicone elastomer is placed. Digital technologies such as computer numerical control (CNC) milling and 3-dimensional (3D) printing have been used to prepare molds directly or indirectly into which a biocompatible pigmented silicone elastomer is placed.

Purpose: The purpose of this in vitro study was to develop a silicone elastomer by varying composition that could eventually be 3D printed directly without a mold to create facial/body prostheses.